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Add 18/28 and 48/80

18/28 + 48/80 is 87/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 80 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 28 × 20 = 560,
    18/28 = 18 × 20/28 × 20 = 360/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    48/80 = 48 × 7/80 × 7 = 336/560
  4. Add the two like fractions:
    360/560 + 336/560 = 360 + 336/560 = 696/560
  5. 696/560 simplified gives 87/70
  6. So, 18/28 + 48/80 = 87/70
    In mixed form: 117/70

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